The Vice President of the United States shall be President of the Senate, but shall have no vote, unless they be equally divided. The Senate shall choose their other officers, and also a President pro tempore, in the absence of the Vice President, or when he shall exercise the office of President of the United States.he actual Enumeration shall be made within three years after the first meeting of the Congress of the United States, and within every subsequent term of ten years, in such manner as they shall by law direct.
Maintenance of membrane asymmetry in the resting state cannot be mediated by passive lipid flip-flop alone, since spontaneous translocation of phospholipids across the bilayer has been postulated to be extremely slow (10 â15 s â1), on average a single lipid flip-flop event every 24 h [8] and [9] .ransbilayer lipid motion has been dubbed flip-flop and it is unfortunate that this rather childish term has stayed in the scientific literature, together with the flippase and floppase terms that designate lipid translocating enzymes.
The ability of the plasma membrane to determine which materials can move in and out of a cell is due to the molecules found in the membrane and the presence of a lipid bilayer. Let's discuss the properties of the lipid bilayer. Phospholipids. Phospholipids are the primary molecules found in the plasma membrane. A phospholipid is unique in that it has a hydrophilic region called the head, and a hydrophobic region known as the tail. The hydrophilic region can interact with water due to the presence of a phosphate group which is polar, like water.